The only issue I have (which, is happening less and less lately) is my debugger doesn't jump to the source. It hits and everything pauses, but I don't get routed to it and have to start progressing just to get it to work, which can make the debugger useless as you've gone past what you were looking at. This has happened across machines for years for me, and happens much less in chrome. But doesn't happen enough for me to switch.